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Rex::PeScan::Scanner::PopPopRetScanner

Public Instance Methods

config(param) click to toggle source
# File lib/rex/pescan/scanner.rb, line 161
def config(param)
        pops = _build_byte_list(0x58, (0 .. 7).to_a - [4]) # we don't want pop esp's...
        self.regex = Regexp.new("[#{pops}][#{pops}](\xc3|\xc2..)", nil, 'n')
end
scan_section(section, param={}) click to toggle source
# File lib/rex/pescan/scanner.rb, line 166
def scan_section(section, param={})

        index = 0

        hits  = [ ]

        while index < section.size && (index = section.index(regex, index)) != nil
                rva     = section.offset_to_rva(index)
                message = ''

                pops = section.read(index, 2)
                reg1 = Rex::Arch::X86.reg_name32(pops[0,1].unpack("C*")[0] & 0x7)
                reg2 = Rex::Arch::X86.reg_name32(pops[1,1].unpack("C*")[0] & 0x7)

                message = "pop #{reg1}; pop #{reg2}; "

                retsize = _ret_size(section, index+2)
                message += _parse_ret(section.read(index+2, retsize))

                index += 2 + retsize

                hits << [ rva, message ]
        end

        return hits
end

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